Design of Multilayer Dual-Band BPF and Diplexer with Zeros Implantation Using Suspended Stripline

Ho, Min‐Hua; Hsu, Wei-Hong

doi:10.1587/transele.e95.c.1195

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“…Diplexer is one of the essential components in the RF front end of most multiservice and multiband communication systems to reduce the number of antennas [1,2,3,4,5,6]. Therefore, researchers show great interest in the high performance and low profile diplexers.…”

Section: Introductionmentioning

confidence: 99%

Microstrip diplexer based on common dual-band filter

Guan

Yang³

et al. 2017

IEICE Electron. Express

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A novel microstrip diplexer with novel coupling structure is proposed in this letter. The proposed diplexer is designed with several stepped-impedance resonators. A dual-mode dual-band filter unit is used in this design to replace the conventional matching network, what is more, the dual-mode dual-band filter unit is resonance with other circuit resonator. The diplexer size can be reduced efficiently in this way. The proposed diplexer is composed by two four-pole chevbyshev filters with six stepped-impedance resonators. Based on the structure, a diplexer with the central frequency of 1.89 GHz and 2.35 GHz for 4G wireless communication application is fabricated and measured. Good agreements between measured results and simulated results verify the proposed structure well.

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